Lyell(US:LYEL) Globenewswire·2025-06-17 10:30Core Insights - Lyell Immunopharma, Inc. announced positive clinical data for LYL314, a CAR T-cell therapy for relapsed/refractory large B-cell lymphoma (LBCL), showing an 88% overall response rate and a 72% complete response rate in patients treated in the third- or later-line setting [1][3][4] Clinical Data Summary - In a Phase 1/2 trial, 25 patients in the 3L+ setting demonstrated an 88% overall response rate and a 72% complete response rate, with 71% of those achieving complete response remaining so at ≥ 6 months [1][3][4] - The efficacy evaluable population included 36 patients, with a median follow-up of 9 months for 3L+ patients and 5 months for 2L patients [2][3] - Among 51 CAR T-naive patients, 70% of those with primary refractory disease achieved a complete response [4] Safety Profile - The safety profile of LYL314 was manageable for outpatient administration, with no Grade ≥ 3 cytokine release syndrome reported and low rates of Grade 1 (22%) and Grade 2 (35%) adverse events [3][5] - Immune effector cell-associated neurotoxicity syndrome (ICANS) was reported in 6% (Grade 1), 2% (Grade 2), and 14% (Grade ≥ 3) of patients, with a median resolution time of 5 days [5] Ongoing Trials - The pivotal single-arm PiNACLE trial is currently underway, targeting approximately 120 patients with relapsed/refractory LBCL in the third- or later-line setting [6][12] - The trial aims to evaluate the overall response rate as the primary endpoint [12] Regulatory Designations - LYL314 has received Regenerative Medicine Advanced Therapy (RMAT) and Fast Track designations from the FDA for the treatment of relapsed/refractory aggressive B-cell lymphoma [11] Manufacturing and Technology - LYL314 is designed to target B cells expressing either CD19 or CD20, utilizing a proprietary manufacturing process to enhance T-cell activity [10][9] - The Lyell LyFE Manufacturing Center™ has the capacity to produce over 1,200 CAR T-cell doses at full capacity [13]